Device for use in the adhesive attachment of edge bindings to shoe platforms



Oct. 16, 1951 c. G. MELANSON 2,571,276 DEVICE FOR USE IN THE'ADHESIVEATTACHMENT OF EDGE BINDINGS TO SHOE PLATFORMS Filed April 22; 1948 70liven for:

Char/e; G. Nah/7&0

Patented Oct. 16, 1951 DEVICE FOR USE IN THE ADHESIVE AT-.

TACHMENT .OF EDGE BINDINGS 'ro SHOE PLATFORMS Charles G. Melanson, Lynn,Mass., assignor to United Shoe Machinery Corporation, Flemington, N. J.,a corporation of New Jersey I Application April 22, 194?, Serial No.22,556

Claims.

-This invention relates to devices for use in the adhesive attachment ofedge covers or bindlugs to the platforms of platform shoes and it isherein disclosed as embodied'in a device wherein an edge binding, suchas a strip of precemented edge binding material, and a shoe platform arefed by hand past instrumentalities which turn the marginal portions ofthe strip over and hold them against the precemented margins of theupper and lower faces of the platform to cause the margins of the stripto be applied to the margins of the platform. Such a device shouldprovide for the accurate gaging of the platform laterally with respectto the strip and it should also provide for compressing the margin ofthe platform just prior to and during the application of the strip toinsure that the binding will lie taut over the edge'face of the platformafter completion of the operation.

It is an object of the present invention to provide a simple andinexpensive device for enabling the operation under consideration to beperformed under the conditions above outlined. In accordance with afeature of the invention the illustrative device is provided with aguide for the strip and a guide for determining the position of the edgeface of a platform laterally with respect to the strip, and withabutments for turning the lateral margins of the strip over and holdingthese margins against the precemented margins of the upper and lowerfaces of the platform to cause the margins of the strip to adhere to themargins of the platform as the platform is fed under control of theplatform guide. As shown herein the platform guide has inclined wallswhich exert a wedging action to compress the marginal portion of theplatform as the platform is forced down into the space between thesewalls. In accordance with a further feature, the strip guide and theplatform guide, as seen in cross section, form guideways which togetherhave the shape of an inverted letter T, the portion which corresponds tothe crossbar of the T serving to guide the strip and the portion whichcorresponds to the stem serving to determine the position. laterallywith respect to thestrip of the edge face of the Fig. 1 is a perspectiveview of 'an illustrative device embodying the-invention;

' 2 is a longitudinal vertical section of the device showingthe'position of the work at the beginning of 'an-operation;

Fig. 3 is a perspective view, partly in section, showing the position ofthe work at an intermediate stage of the operation;

Fig. 4 is a vertical longitudinal section showing the position of-thework at a still later stage of'the operation;

Fig. 5 is a vertical section taken on the lin VV of Fig. 3; v f

Fig. 6 isa large scale vertical section taken on the line VI-VI of Fig.4; and

Fig. 7 is a perspective view of a platform with the edge binding appliedthereto.

As shown in the drawings, an oblong rectangular base block l0 has asmooth fiat upper surface l2 for supporting astrip S of edge bind-.- ingmaterial of leather or, if desired, of fabric or other suitablematerial. The strip S is guided for longitudinal movement on the surfaceI2 by a pair of thin flat parallel guide members l4 and I6 which engagethe lateral edges of the strip, the thickness of the guide members beingslightly greater than that of the strip. The guide members l4 and 16 arebridged by a pair of slides l8 and 20 upon which the guide members aresecured by screws 22 (Figs. 1 and 3). The slides l8 and 20 engagetransverse guideways formed in the block ill to enable the guide membersl4 and IE to be adjusted laterally to determine the lateral position ofthe strip S, and they are secured in adjusted position by clampingscrews 24 and 26 (Fig. 2) threaded into the respective slides andextending through transverse slots 25 and 21 in theblock Ill to permitthe lateral adjustment. A platform P, shown as a forepart platform ofcork composition, felt, or other resilient material, is gaged laterallywith respect to the strip S by a pair of parallel guide members in theform of blocks 28 and 30 which overlie the guide members I4 and I6respectively and which also extend over the lateral margins of thestrips. The guide block 28 is secured to the base block In by a pair ofclamping screws 32 which extend through transverse slots 34 in the guideblock to permit lateral adjustment of the guide block. In order thatsuch adjustment shall not interfere with the adjustment of theunderlying guide member I4, transverse slots 35 (Fig. 5) similar to theslots 34 are provided in the guide member M to accommodate the screws32. The screws 32 are provided with washers 40 to bridge the slots 34.The guide'block 30 1s similarly secured by screws 42 to the base block II! with similar provision for lateral adjustment.

The lateral adjustment of the guide members l4 and I6 is made after thescrews 32 and 42 have been loosened; then when the slides i8 and 28 havebeen clamped in their adjusted positions by the screws 24 and 26, theguide blocks 28 and 30 are adjusted td th eir desired positions andsecured by their clamping screws 32 and 42.

Positioned rearwardly (i. e., to the right as shown in Fig. l) of theguide member I4 and the guide block 28 is an abutment b1 'e1; jisecurejdto the base block [8 by a pair of clamping screws 46 which extendthrough enlarged holes in the abutment block to provide for adjustmentlat; erally and also forwardly and rearwardly the screws 46 beingprovided with washers 50 which bridge the enlarged holes. jE ositionedrear wardly of the guide member 16 and the guide block 30 is an abutmentblock 52 which is secured to the block ID by a pair bf screws 54 in themanne si ilar to t at w h s r w 4.6 se u e the abutment block 45. Theguide block gt and theeb nt b o 4 are. s d. an a justed as to providebetween themaslot 56 (Fig. 1) of sufiicient width to accommodatethethickness of .thes S- .This s t s o wa d y and rea w rd f o t e. uppr u a l of th base block [0. The guide member l1 terminates rea ward t.e tt m ,Qfth M The guide block 38 and the abutment block 52 are likewiseshaped andadjusted to provide between them a slot 58 which is similar tothe slot 56. The guide member 18; terminates rearwardly at the bottom ofthe slot 58. Betweenthe abutment blocks 44 and 52 is a spacesubstantiallyequal in width to the normal thickness of the marginalportion Of the platform P before the strip S' ha s been. appliedthereto. The abutment blocks 45 and 52 have adjacent walls Bland 62(Fig. 6) which are vertical and which engage the lateral margins of thestrip S as the strip is being applied to' the platform. p v v v Theturning of the lateral margins of the strip from their original flathorizontal positions to positions in which they are laid upon themarginal portions of the upperjand lower faces of the platform P isaccomplished by a pair of abutments 64 and 86. These abutments consist'of sloping upwardly diverging oblique conical surfacesformedrespectively on the abutment blocks 44 'and 52. shown clearly in Fig. 1)is tangent to and contihuous with the sloping front wall of the abut-'rnent block 52 (which definesithe rear wall of the slot 58) and it isalso tangent to and continuous with the vertical wall 62. The abutment64 (not clearly shown) on the abutment block 44 is 'similar to theabutment 68.

Between the walls 60 and 6-2 isan end block 68 which is secured to thebase block In by a clampi'ng screw 10 extending through alongitudinalslot 12 in the block 68 to provide for forward'ancl rearward adjustment.A washer 14 bridges the slot 12. The block 58 has a forward surface 18which slopes upwardly and rearwardly from the surface l2 of the blockI0, the sloping surface 18 preferably having a slight concave curvature.The' sloping surface 16 is positioned rearwardly of the abutments '64and 86 to leave an open space between the forward portions of the walls50 and 62.

Between the guide blocks 28 and 30 is a space into which the platform 1?may be inserted to "bring the edge face of the platform into engagementwith the strip S. As shown in Fig. 5, the

guide blocks 28 and 30 have opposing walls 18 4 and 80, respectively,which slope downwardly and toward each other to cause somewhat of acompression in the marginal portion of the platform as the platform ispressed down between .them, the lowe r edges of the sloping walls beingsion for such adjustment is unnecessary, as the The abutment'fifi(whiclris .2

screws 22 can be located where desired. Whether the device is of wood ormetal, interchangeable end blocks 58 will be necessary to fill thewidthof the sp'ace between the abutment bloclgs and 52 if these mocks have tobe ea justed towai'd or from each other for platforms of d ent hiqt e'er lnthe adjusting of the device, the abutment blocks it e s; areadjusted symmetrically about a longitudinal centrline which extendsforwardly and rearwardly along the bas block it andissubstantiallycoincident with the longitudinal center line of the base block. Theguide blochs 28 and 3D are adjusted symmetrically about the. same centerline as the abutment blocks, and just close enough, as shown in Fig. 5,to effect a slight compression of the marginal portions of the platform}as the platform is forced d wn be w en th sloping wa s 1' a d 8.."- e lde 1 nd re ad ed symmetrically with respect to the common center lineof, the bloclgs tt and 52 and of the blocks 28 and 30 if the extent ofmarginal overlapping of the strip g is to be the same upon the upper andlower faces of the platform P. N If, however, a greater or less extentof overlapping is desired upon the upper fa ce of theplatform than uponthe lower, the guide members Hand [8 are adjusted theappropriatedistances to the right or left of the common center lineabove mentioned. This adjustment of the guide members It and 16, as hasalready been stated, should be made before the guide blocks 28 and 30are adjusted and while the screws 32 and 42 are loose. i

, It will be observed that the guideways for the strip S and theplatform P, as seen together in cross section (Fig.5), are in the formof an inverted letter T with the space between the guide members I; andI8 forming the cross bar of the T and the space between the guide blocksforming the stem of the T. I U

Before performance of the operation, the marginal portions of theplatform P, as indicated by 'stippling in the drawings, have been coatedwith latex or rubber cement all the way to and including the upperandlower corners of the edge face; the edge face itself, however, isleft free of cement to avoid the sticking of the strip S to the edgeface. The entire surface of that side of the strip S which is to lieneat to the platform B is coated witha similar cement. The marginalportions of the outer surface of the strip S may, as indicated byscratch marks, be roughened to facilitate subsequent cement attachmentto an upper and an outsole. The marginal portions of the upper and lowersurfaces of the platform may have been similarly roughened to facilitateattachment 'of the strip.

The operation," which is" performed manually, consists in threading thestrip S, cemented side uppermost, into the space between the guidemembers I 4 and I6, and in thenpressing the platform P down between theguide blocks 28 and 30 until the edge face of the platform engages thestrip, as shown in Fig. 2. The operator then advances the platform,which frictionally drags the strip S with it, until that, portion of thestrip which is just under the edge face of the platform is pressedagainst the surface 16 of the end block 68 and, while thus holding theplatform, he turns it through the positions shown in Figs. 3 and 4 untilthe strip S has been applied to cover the entire edge face of theplatform. As the operator turns the platform, the marginal portions ofthe strip feed up through the slots 56 and 58 and are turned by theabutments 64 and 66 upon the marginal portions of the upper and lowerfaces of the platform. These abutments, and the walls 60 and 62 whichconstitute continuations of the abutments, press the marginal portionsof the strip against the platform with a pressure resulting from thetendency of the platform to spring back from its compressed state to itsinitial thickness. This compression was eiTected by forcing the platformdown between the sloping walls 18 and 80 and also by forcing it, withthe overlying marginal portions of the strip, past the abutments 64 and66 and into the space between the walls 60 and 62. The strip does notstick to the uncemented edge face of the platform and, since it wasapplied while the marginal portion of the platform was undercompression, it will lie taut over the edge face after the operation hasbeen completed. The pressure, exerted through the platform, of the stripagainst the surface 16 of the end block 68 holds the strip smoothagainst the edge face of the platform and prevents the formation ofwrinkles in that portion of the strip which overlies the edge face.

The platform P with the strip S applied thereto is shown in Fig. '7. Theends of the strip may now be trimmed, and the finished article will thenbe ready to be incorporated in a platform shoe.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is:

'1. In a device for use in the adhesive attachment of an edge binding toa shoe platform, a guide engageable with the lateral edges of a strip ofprecemented edge binding material, a guide for determining the positionof the edge face of a platform laterally with respect to said strip,said guide having inclined walls for exerting a wedging action tocompress the marginal portion of the platform as the platform is forceddown into the space between said walls, and abutments for turning thelateral margins of the strip over and holding said margins against theprecemented margins of the upper and lower faces of the platform tocause the margins of the strip to adhere to the margins of the platform,said abutments being engageable by the strip while the platform is beingfed under control of the platform guide and with the margin of theplatform under compression.

2. In a device for use in the adhesive attachment of an edge binding toa shoe platform, a guide constructed and arranged to provide a guidewaywhich, in cross section, is in the form of an inverted T, the portion ofthe guideway which corresponds to the crossbar of the T serving to guidea strip of precemented edge binding material and the portion whichcorresponds to the, stemserving to determine the position, laterallywith respect to said strip, of the edge face of a platform, saidstem-corresponding portion having inclined Walls which, as the platformis forced down into the space between them, exert a wedgingaction tocompress the marginal portion of the platform, and abutments havingconical surfaces for laying the marginal portions of the strip over andadhesively attaching them to the precemented margins of the upper andlower faces of the platform as the platform and the strip are fed alongsaid guideway and while the margin of the platform is compressed, theresult of said compression being to maintain the covering taut over theedge face of the platform after completion of the operation.

3. In a device for use in the adhesive attachment of an edge binding toa shoe platform, a guide engageable with the lateral edges of a strip ofprecemented edge binding material, a guide for determining the positionof the edge face of a platform laterally with respect to said strip,abutments for turning the lateral margins of the strip and holding saidmargins against the margins of the upper and lower faces of the platformto cause the margins of the strip to adhere to the precemented marginsof the platform as the platform is fed under control of the platformguide, and a member against which that portion of the strip whichoverlies the edge face of the platform can be held by pressure exertedthrough the platform while the margins of the strip are being applied tothe platform, the purpose of said member being to hold said overlyingportion of the strip smooth against the edge face of the platform andthereby to prevent the formation of wrinkles in said overlying portion.

4. In a device for use in the adhesive attachment of an edge binding toa shoe platform, a base block having an upper surface adapted to supporta strip of precemented edge binding material, a pair of parallel guidemembers carried by said block for engaging the lateral edges of thestrip to determine the lateral position of the strip, a pair of parallelguide members carried by said block for engaging the marginal portionsof the upper and lower faces of a shoe platform to determine the lateralposition of the edge face of the platform, and a pair of abutmentsadjacent to the ends of the guide members, said abutments having conicalsurfaces arranged to turn the lateral margins of the strip over, saidabutments having also flat surfaces arranged to hold the lateral marginsof the strip against the precemented margins of the upper and lowerfaces of the platform tocause the margins of the strip to adhere to themargins of the platform as the platform and with it the strip are fedunder control of their respective guide members.

5. In a device for use in the adhesive attachment of an edge binding toa shoe platform, a base block having an upper surface adapted to supporta precemented strip of edge binding material, a pair of parallel guidemembers for engaging the lateral edges of the strip to determine thelateral position of the strip, guide means engageable with the marginalportions of the upper and lower faces of a shoe platform to determinethe lateral position of the edge face of the platform, a pair ofparallel slides, said block having guideways in which said slides aremovable for lateral adjustment, means for securing each of said stripguide members to both of said slides QMIJWC 8 enable the strip guidemembers to be adjusted REFERENCE-S crrrsn in unisonlaterally, means forsecuring said slides in adjusted position, and a pair of abutments adhfollowinglefelences are record in the Jacent' to the ends of the guidemembers and arme of this Patent:

ranged to turn the lateral margins of the strip r over and hold themagainst the precemented 5 UNITED STATES PATENTS margins of the upper andlower faces of the plat- Number Name Date form to cause the margins ofthe strip to adh 7 50 tt Oct, 3, 1939 to the margins of the platform asthe pl tf 7 346 Campbell Feb, 17, 1942 and with it the strip are fedunder contr l 0 19 23 1 72 g tte Jan, 2, 1945 their respective guidemembers. 2 72 5 au Man 2 1946 CHARLES G. MELANSON.

